| Littleton, CO | Rockville, MD | United States |
Rainfall | 18.1 | 42.2 | 38.1 |
Snowfall | 68.9 | 18.2 | 27.8 |
Precipitation Days | 84.4 | 112.3 | 106.2 |
Sunny | 246 | 203 | 205 |
Avg. July High | 86.9 | 84.8 | 85.8 |
Avg. Jan. Low | 17.8 | 25.1 | 21.7 |
Comfort Index (higher=better) | 7.3 | 7.4 | 7 |
UV Index | 5.2 | 4.1 | 4.3 |
Elevation ft. | 5351 | 456 | 2443 |